Research and Development in the Physical, Engineering, and Life Sciences, Chemistry, Chemistry, Physical and theoretical, Physical chemistry

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In situ Raman spectroscopy investigation of the dissociation of methane hydrate at temperatures just below the ice point

Article Abstract:

The in situ Raman Spectroscopy are used to investigate the dissociation kinetics of methane hydrates at temperatures just below the melting point of ice. The decomposition behavior of methane hydrate is described using a non steady-state approximation and a diffusion-controlled regime kinetic model.

Encapsulation of saline solution by tetrahydrofuran clathrate hydrates and inclusion migration by recrystallization

Article Abstract:

The encapsulation of saline solution as an impurity in tetrahydrofuran clathrate hydrates grown in a stoichiometric solution with 3 wt % and the release of a saline solution during melting along with inclusion migration by hydrate recrystallization during annealing are studied. Interfermetric observation revealed that the salt concentration increased locally in the solution near the growth interface.